Valve.



RI J. BARRETT.

llll

'Patented Feb. 9, 1915.

VALVE.

APPLICATION FILED MAY 29, 1914.

,f the construction of its casing in which the` Ross J. BARRETT,

0F TOLEDO, OHIO.

MIM E i VALVE.

riaaoaa.

.Application tiled May 29,

T0 all 'e0/mm 'it may concern Be it known that I, Boss J. BARRETT, acitizen of the United States, residing at Toledo, in the county of Lucasand State of Ohio, have invented a new and useful Valve, of which thefollowing is a specification.

My invention relates to certain new and useful improvements in valvesand lmore particularly in check valves.

The object of my invention is to provide a simple and durable checkvalve in which the valve will seat evenly at all times.

Another object is to provide a valve of the character referred to inwhich the valve will always seat itself and prevent any leakage.

.A still further object is to provide a valve of the character referredto in which the valve proper is easily accessible.

A still further object is the improvement I of the construction of thecheck valve and valve and casing are simple, durable and comparativelyinexpensive.

With the objects in View the invention consists in the novelconstruction and arrangement of parts, hereinafter described,illustrated in the accompanying drawings, and particularly pointed outin the appended claim, it being understood that various changes intheform, proportions, size and minor details of construction may be madewithout departing from the spirit or sacrilicing any of the advantagesof the invention. In the drawings: Figure 1 is a side elevation of thevalve casing. Fig. 2 is a longitudinal section through the casingprovided with a valve constructed in accordance with my invention. Fig.8 is a detail perspective view of the valve.

Similar numerals of reference indicate corresponding parts throughoutthe several views. f

Referring to the drawings, the casing is composed of the sections 1 and2 adapted to be connected by means of screw threads 3. The section 1l isprovided with the usual internal screw threads l by means of which asuitable outlet pipe is connected' to the casing and further comprisingthe restricted portion 5 connecting said screw threaded portion with theenlarged chamber 6 in which chamber the body of the valve operates. Thesection 2 of the casing is provided with the usual internal screwthreads 7 by means of whicha suitable inlet pipe is Specication ofLetters Patent.

Patented lFeb. 9, 1915. 1914. senal no. 841,702.

connected to the casing and comprises the restricted opening 8 whichconnects said screw threaded portion which the valve chamber 6. Theforward internal face of the section 2 forms a valve seat as shown at 9and a beveled valve seatlO is formed connecting said face'with therestricted opening 8.

The valve consists of the frusto-conical portion 11 adapted to seat uponthe beveled valve seat 10,`and the annular flange 19 located around thebase of said frusto-conical portionv 11 and adapted to seat upon the lvalve seat 9, the object and functions of said annular flange beinghereinafter more fullyvalve stem 17 extends backward from thefrusto-'conical portion 11 of the valve body and is provided with aseries of radial wings 18 slidably mounted within the restricted opening8 of the section 2 of the case.

By the construction above decribed, a 4valve casing is formedthesections of which may be readily detached when it is necessary to'haveaccess to the valve. VThe wings 14 and 18 provided upon the stems 13 and17 respectively will at all times be located within the restrictedapertures 5 and 8 respectively, thus preventing any tipping of the valveand causing it to seat evenly at -all times. By providing the valve bodywith the frusto-conical portion 11 adapted to seat upon thebeveled seat10 and with the annular flange 19 adapted to seat upon the seat 9 agreater area of the valve body -is caused to. come in contact withthevalve seat than is possible in the ordinary construction thusreducing to a minimum the possible leakage through-the valve.

Although the drawings and above specification disclose the best mode inwhich Iv have contemplated embodying my invention I desire to be notlimited to the details of such disclosure, for, in the further practicalap! plication of my invention, many changes in form and construction maybe made, as circumstances require .or experience suggests, withoutdeparting from the spirit of the in vention, within the scope of theappended claim.

I claim: r

The combination of a valve casing comprising two separable members, oneof said members containing 'a valve chamber and a restricted passageconnected thereto the wall of said valve chamber adjacent saidrelstricted passage being of concave form, an internal stop flangeprovided within said restricted passage, external screw threads locatedaround theA portion containing the said valve chamber, said secondmember provided With an internally screw threaded portion adapted toengage said externally screw threaded portion, a at valve seat locatedwithin said second member and forming the rear wall of the valvechamber, a beveled valve'seat adjacent to said fiat valve seat,

a restricted passage adjoiningsaid beveled K valve seat and a valvecomprising a frustoconical portion adapted to seat against said beveledvalve seat, an annular lia-nge lormaooe cated around the base of saidfrusto-conical portion and adapted to seat against said-Hat valve seat,a valve stem adjoining said frusto-conical portion, radial wings carriedupon said valve stem and adapted to slide within the restricted portionin the second member, a-second frusto-conical portion abutting saidannular flange, a second valve steml and radial wings carried thereonand adapted to slide within the restricted passage within said rstmember, said radial wings provided With beveled edges adapted to contactwith said internally disposedflange to limit the movement of said valveand to prevent said second'y named frustoconical portion from contactingwith the concave wall of said valve chamber.

In testimony that I l claim the above, I have hereunto subscribed myname in the presence 'of two witnesses.

` Ross J. BARRETT.

Witnesses:

CHAs. C. MILLER, B. F. MAHETT.

